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revision 1.1404 by jmc, Tue Mar 29 20:11:39 2011 UTC revision 1.1447 by heimbach, Wed Jun 1 22:41:34 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o adjoint:
8      bug fix spotted by Gael Forget:
9      seaice_advection and thsice_advection still had
10      legacy CPP options to avoid CS corner updates for adjoint
11    o pkg/seaice:
12      => Change some of the defaults (2011/05/29):
13         - change SEAICEuseFluxForm default (from False to True)
14         - change DIFF1 default (from 0.004 m/s to 0. m/s)
15         And print warnings if DIFF1 is not set in data.seaice and centered
16          avection scheme is used without any diffusion.
17      also:
18      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
19      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
20      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
21        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
22        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
23      update results of test exp.:
24         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
25             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
26             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
27         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
28         seaice_obcs: output (SEAICEuseFluxForm=T)
29      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
30          for standard fwd & AD lab_sea tests (to keep the same output).
31    o pkg/seaice/seaice_growth.F:
32      - use Ian Fenty's capping formulas for actual ice
33      thickness thoughout EVOLUTION branch.
34      - put treatment pathological case #2) in CPP brackets
35      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
36      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
37    o pkg/seaice:
38      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
39      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
40      also pass fac as a param, which can be 1. (to update the tendency
41      field) or the time step (to update the field itself).
42      - seaice_advdiff.F: for multidim, call seaice_diffusion with
43      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
44      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
45      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
46      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
47    o pkg/seaice:
48      diffusion with centered advection scheme (diffus.F & advect.F):
49      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
50        to just compute the laplacian of input-field.
51      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
52      - fix flux-form version in diffus.F to conserve tracer.
53      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
54       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
55    
56    checkpoint62y (2011/05/26)
57    o pkg/seaice:
58     - seaice_growth.F : in EVOLUTION branch, always include
59       a_QSWbyATM_cover in qnet (as it should be).
60     - verification/global_ocean.cs32x15 : update results accordingly
61       (output.seaice.txt output_adm.seaice.txt).
62    o pkg/seaice + obcs:
63     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
64       equivalent of assuming no tracer gradient outside the OB region.
65       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
66     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
67       after changes above);
68     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
69       only at OB location (instead of over a band of OLx width).
70    o pkg/seaice:
71     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
72       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
73    o pkg/obcs:
74      - split header file "OBCS.h" into 4 separated files:
75        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
76       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
77         (contain no conditional statement which depends on OBCS options).
78      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
79        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
80    o ctrl, cost, grdchk & autodiff pkgs:
81      - make options file more standard (like other {PKG}_OPTIONS.h file but
82        with AD_CONFIG.h); clean-up some of the included header files.
83    o pkg/obcs:
84      - do not mask tracer when applying OB (tracer == 0 could generate problems)
85      - apply tracer OB values to tracer field only at OB location (instead of
86        over a band of OLx width)
87      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
88      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
89        obcs_apply_tloc.F & obcs_apply_sloc.F
90    o obcs in model/src:
91      - call OBCS_APPLY_W only if NonHydrostatic.
92      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
93      - reset dEtaHdt and wVel to zero outside OB interior region ;
94      - leave tracer unchanged outside OB interior region: This has no effect
95        on the solution but just to prevent unrealistic tracer value outside OB.
96      - zero out velocity outside OB interior region: This has no effect on
97        the solution but just to prevent unrealistic velocity outside OB.
98    o obcs and non-lin free-surf:
99       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
100       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
101       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
102       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
103       update results of test-exp. exp4(nlfs).
104    o exp4 (nlfs) test-exp:
105       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
106       with NonLin-FreeSurf); update output.nlfs.txt
107    o obcs and 2d/3d solver norm:
108       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
109       and outside OB interior region (will allow to place OB further inside the
110       domain). Depending on the domain, can affects cg2d-Norm (previous
111       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
112       and cg3d-Norm (previous Norm was computed before canceling OB terms),
113       e.g. in tutorial_plume_on_slope.
114      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
115    o pkg rbcs:
116      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
117      - add capability to apply relaxation to horizontal velocity uVel & vVel.
118    o pkg/grdchk: add gradient check for control variable xx_shifwflx
119    o pkg/shelfice/shelfice_init_fixed.F
120      fix CPP-flag combinations
121    o pkg/seaice: Merge iceage code of Pierre Rampal
122      * update/change/correct ice age calculations
123      * add age updates for pathological cases
124      Probably needs more testing...
125    
126    checkpoint62x (2011/05/13)
127    o pkg/mom_vecinv:
128       high-order vorticity scheme: use interior masks (maskInW & S)
129       to zero-out (outside OB) gradient of vorticity.
130    o verification exp.:
131       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
132       hs94.128x64x5 and seaice_obcs ; update results.
133    o pkg/obcs:
134      fix bug in OBeta for YZ sections in obcs_exf_load.F
135    o pkg/ctrl, pkg/shelfice, and optim:
136      - add new control variable xx_shifwflx (fresh water flux underneath ice
137        shelves). This is almost as tedious as obcs-ctrl, because the
138        variables needs its own mask.
139      - add a cost function term that penalizes the deviation of xx_shifwflx
140        from the first guess (zero) in analogy to other control variables
141    o pkg/shelfice:
142      - start basic adjoint
143    o pkg/ctrl:
144      - remove extra 2D field "for good measure" when initializing in
145        ctrl_set_globfld_[xy/xz/yz].F
146      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
147      - improve error messages in ctrl_set_unpack_*
148    o OBC implementation in momentum:
149       use interior masks (maskInC,W & S) in momentum S/R:
150       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
151       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
152       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
153       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
154       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
155        (and also with Leith/Smagorinsky harmonic-viscosity).
156       Update output of experiment dome and exp4 (+nlfs).
157    o exp4 test-exp:
158      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
159        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
160        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
161        time-varying OB at Western-side for wVel (NonHyd); update output.
162      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
163        and biharmonic-viscosity ; also use prescribed time varying OB.
164    o pkg/obcs:
165      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
166    o model/src:
167      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
168      - initialise startTime & nIter0 with unlikely values: allows to set one
169        from the other without ambiguity.
170    o seaice_obcs test-exp.:
171      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
172    o pkg/obcs:
173      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
174        no longer needed with maskInC,W,S in pkg/generic_advdiff.
175    o pkg/seaice:
176      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
177        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
178      - fixed bug in the initialization of sea ice salinity variable HSALT
179        in seaice_init_varia.F  (removed dependence on ICE2WATR)
180    o fizhi-cs test exp.:
181       switch reference output convention for these 2 non-standard test-exp,
182        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
183          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
184       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
185    o model/inc:
186      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
187        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
188    o pkg/seaice:
189      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
190    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
191      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
192        and initial HSALT
193    
194    checkpoint62w (2011/04/26)
195    o pkg/mom_fluxform:
196      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
197      - use parameter "sideDragFactor" in no-slip BC side-drag part.
198      - update output of exp. global_ocean.90x40x15
199    o pkg/mom_vecinv:
200      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
201    o update seaice exp.:
202      use more consistent parameter values (remove "backward compatability only":
203       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
204      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
205       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
206    o update test-exp global_ocean.90x40x15:
207      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
208      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
209      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
210      o turn on zStar & viscA4 in standard set-up (dir input/)
211        and update output files: output.txt & output.dwnslp.txt
212    o new AD-test experiment: obcs_ctrl
213      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
214    o pkg/dic:
215      fix two bugs in handling water vapour pressure in carbonate chemistry
216      and air-sea fluxes. Found by Val Bennington and Galen McKinley
217      (add DIC Option = WATERVAP_BUG to recover old results)
218      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
219    o adding allowInteriorFreezing option to check for water below freezing point
220      at depth and bring the negative heat anomaly to the surface level
221    o pkgs _fields_load:
222      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
223      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
224        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
225        rbcs to get interpolation weights and time reccord number.
226      - fix multi-threading in aim_fields_load.F
227      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
228    o external_fields_load:
229      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
230       interpolation weights) to use in a periodic time-series ; do not divide by
231       time-step to convert to integer:
232       - this fixes case where externForcingPeriod is not multiple of time-step
233          (Thanks to Christopher L. Wolfe)
234       - this fixes case where externForcingPeriod is an odd multiple of time-step
235         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
236      store index of time-record which is currently loaded:
237       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
238       - needed for the adjoint but not yet used because of extensive recomputations;
239         (to be fixed soon)
240    
241    checkpoint62v (2011/04/02)
242    o verification/1D_ocean_ice_column added to test Ian Fenty's
243      pkg/seaice_growth.F modifications for improving sea ice code differentiability
244    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
245      (new velocity statistics after changing maskInW & maskInS definition)
246  o pkg/generic_advdiff with OBCS:  o pkg/generic_advdiff with OBCS:
247    use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:    use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
248    equivalent to assumption of no tracer gradient outside the OB region.    equivalent to assumption of no tracer gradient outside the OB region.

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